ios - iPhone private API compiling -


i'm searching through whole internet since few hours now, , can't find informations i'm looking for. mess around private apis, see whats possible, etc., can't compile something.

so i've got few pretty basic questions:

  • do have dump headers? because downloaded sample, api loaded 
char *framework = "/system/library/privateframeworks/..."; dlopen(...);

i use objc-syntax (if possible) rather using c (as mentioned above), if there opportunities.

  • how make xcode compile, if import private apis? have add other link flags? (because read 2 different opinions) added private framework , created new folder "headers" , put headers files in there, framework shows correctly in xcode. have import whole .framework, or headers framework use? after imported framework, 20+ errors, unknown type names, , many more.

and, finally, i've read entitlements (which seem new in ios 7). how use these entitlements , when use them?

could please type few lines example?

background

in order use methods in any framework, can choose either reference frameworks statically or dynamically. haven't seen in question suggests need use dynamic linking, i'm going avoid (it's more complicated beginner). (‡)

to statically reference apis in framework, import relevant headers, , configure xcode project link framework. these 2 steps change slightly private apis.

private apis don't provide headers (*.h) describe apis. "usually", because sometimes, api that's private on ios public on mac os x, use it, copy os x version of header project.

generating headers

probably more common, though, have generate header yourself. if know header need, can find posted online under someone's github account. if not, need tool class-dump, or class-dump-z. run class dump tool on private framework, finding on mac:

cd /applications/xcode.app/contents/developer/platforms/iphoneos.platform/developer/sdks/iphoneos7.0.sdk/system/library/privateframeworks/ class-dump -h -o ~/headers/7.0/musiclibrary/ musiclibrary

then, go ~/headers/7.0/musiclibrary/ , find lots of dumped header files. copy (only) header(s) need xcode ios project directory. then, inside xcode, right click on source folder in project navigator view, select "add files <project name> ...". pick dumped header file need include in project.

linking

in order link against api, need add framework xcode build phases. project target settings, select build phases link binary libraries. choose public framework default list ios sdk provides you. however, can choose browse mac 3rd-party frameworks, or private frameworks, too. private frameworks, you're going have navigate folder location this

/applications/xcode.app/contents/developer/platforms/iphoneos.platform/developer/sdks/iphoneos7.0.sdk/system/library/privateframeworks/

and pick *.framework directory.

then, use apis use public/private api. #import header file, call apis, instantiate classes, etc.

the use of code:

char *framework = "/system/library/privateframeworks/..."; dlopen(...);

is attempt dynamically open private framework. that's not necessary, if know @ compile time framework want use, , have present on mac let xcode link against.

entitlements

entitlements not new ios 7. have existed quite time, , 1 technique ios uses prevent unauthorized usage of private apis. ios check see if app has been granted particular entitlement (by name), , if not have entitlement, calling protected api fail (usually silently, although you'll see message in console log).

see here example of granting (jailbreak) app entitlement.

(‡) update: ios 9.3 has brought changes respect private apis, , static vs dynamic linking. please see stack overflow question here more.


Comments

Post a Comment

Popular posts from this blog

node.js - Using Node without global install -

i'm working on few node & electron (atom shell) projects , i'm curious how them work without user having install node globally. i've seen few applications including node directory in project contains node.exe binary. how go setting node project use binary? edit: thought should add, i've searched everywhere answer this, unrelated results.
Read more

How to access a php class file from PHPFox framework into javascript code written in simple HTML file? -

i've website developed using phpfox v3.0.7 . now i'm trying implement 'sse(server sent events)' 1 of php files. reference i'm giving below necessary code part of file. file titled process.class.php , present @ location /var/www/module/notification/include/service/process.class.php present on server having ip http://34.124.40.142/ . <?php /** * [phpfox_header] */ header('content-type: text/event-stream'); header('cache-control: no-cache'); defined('phpfox') or exit('no dice!'); /** * * * @copyright [phpfox_copyright] * @author raymond benc * @package phpfox_service * @version $id: service.class.php 67 2009-01-20 11:32:45z raymond_benc $ */ class notification_service_process extends phpfox_service { /** * class constructor */ public function __construct() { $this->_stable = phpfox::gett('notification'); } public function add($...
Read more

java - Null response to php query in android, even though php works properly -

Image
table i'm trying retrieve above data using 2 php files below. want pass email parameter , return bets user = email. work fine when tested advanced rest client, problem not php. however, when try through android 2 java classes below, null pointer exception (logcat below) , json object returned null. i'm not sure error is, think i'm not passing parameter php , that's why it's producing null response. logcat 05-31 15:10:50.227 26074-26074/com.example.albert.betterapp e/androidruntime﹕ fatal exception: main process: com.example.albert.betterapp, pid: 26074 java.lang.runtimeexception: unable start activity componentinfo{com.example.albert.betterapp/com.example.albert.betterapp.displayallbets}: java.lang.nullpointerexception @ android.app.activitythread.performlaunchactivity(activitythread.java:2292) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2350) @ android.app.activitythread.acce...
Read more